Load your seed pack selection.
(Selections, load from disk) Flood-fill the selection with #A65A7E. (If you
are using other colors or fills, pick your own color. Make sure to fill the
dotted lines, too.)

Use your magic wand tool to click inside the
sides of the seed pack. While it is still selected, add a new raster
layer. Flood-fill this layer with the background fill you saved. Your image should now
look like this: (image re-sized for faster loading)

While the seed pack is still
selected, go to "selections", "modify",
"contract." Contract selection by 15.

*Add a new raster layer.*

Flood fill with solid color #E9DCA8
(or your choice.)

*Add a new raster layer. Make the
blend mode "dissolve" instead of "normal."*

Flood fill this layer with the
darker color. I used #A65A7E. Go to your layers palette and reduce the opacity
of this layer to "3." You should now have a nice country look like
this: (image re-sized for faster loading)